/* eslint-disable space-before-blocks */
/* eslint-disable quotes */
import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import qs from 'qs'

//url中的占位符
const placeholder=/\{(\w+)\}?/gi; 

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // api 的 base_url
  withCredentials: true, // 跨域请求时发送 cookies
  timeout: 50000, // request timeout,
})

// request interceptor
service.interceptors.request.use(
  config => {
    config.headers["Content-Type"] = "application/json;charset=UTF-8"
    config.headers["Access-Control-Allow-Origin"] = "*"

    // Do something before request is sent
    if (store.getters.token) {
      // 让每个请求携带token-- ['X-Token']为自定义key 请根据实际情况自行修改
      config.headers['accessToken'] = getToken()
      config.headers['token'] = getToken()
    }
    const url =  buildPath(config.url,config.data ? config.data : config.params);
    config.url = url;
    return config
  },
  error => {
    // Do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get information such as headers or status
   * Please return  response => response
  */
  /**
   * 下面的注释为通过在response里，自定义code来标示请求状态
   * 当code返回如下情况则说明权限有问题，登出并返回到登录页
   * 如想通过 XMLHttpRequest 来状态码标识 逻辑可写在下面error中
   * 以下代码均为样例，请结合自生需求加以修改，若不需要，则可删除
   */
  response => {
    const res = response.data
    // console.log(response)
    if (response.headers.hasOwnProperty('content-disposition')){
      return response
    }
    if (res.code !== 0) {
      Message({
        message: res.message || 'error',
        type: 'error',
        duration: 5 * 1000
      })
      // 50008:非法的token; 50012:其他客户端登录了;  50014:Token 过期了;
      if (res.code === 50008 || res.code === 50012 || res.code === 10) {
        // 请自行在引入 MessageBox
        // import { Message, MessageBox } from 'element-ui'
        MessageBox.confirm('登录失效，可以取消继续留在该页面，或者重新登录', '确定登出', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload() // 为了重新实例化vue-router对象 避免bug
          })
        })
      }
      return Promise.reject(res.msg || 'error')
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)


 //解析类似 /api/page/2这样动态参数的问题，用正则去匹配我们的占位符，把真实数据放进去
 function buildPath(url,path){
  if(!path)return url;
  return url.replace(placeholder,function ($1,$2) {
      return $2=encodeURIComponent(path[$2]);
  });
}


export default service
